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1- How is light detected by cells? How is this different from all other senses?   2- Why do nervous cells have a negative membrane potential? How is this created?   3-Compare and contrast 3 types of sensory nerves

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1- How is light detected by cells? How is this different from all other senses?

 

2- Why do nervous cells have a negative membrane potential? How is this created?

 

3-Compare and contrast 3 types of sensory nerves.

 

4-Draw and label an action potential. Describe what is occurring cellular at each step.